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net sched: cleanup and rate limit warning

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If the user has a bad classification configuration, and gets a packet
that goes through too many steps. Chances are more packets will arrive,
and the message spew will overrun syslog because it is not rate limited.
And because it is not tagged with appropriate priority it can't not be screened.

Added the qdisc to the message to try and give some more context when
the message does arrive.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
stephen hemminger 2010-05-11 14:24:12 +00:00 committed by David S. Miller
parent 207024b947
commit b60b6592ba
1 changed files with 6 additions and 3 deletions
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9
net/sched/sch_api.c
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@ -1637,9 +1637,12 @@ reclassify:
tp = otp;
if (verd++ >= MAX_REC_LOOP) {
printk("rule prio %u protocol %02x reclassify loop, "
"packet dropped\n",
tp->prio&0xffff, ntohs(tp->protocol));
if (net_ratelimit())
printk(KERN_NOTICE
"%s: packet reclassify loop"
" rule prio %u protocol %02x\n",
tp->q->ops->id,
tp->prio & 0xffff, ntohs(tp->protocol));
return TC_ACT_SHOT;
}
skb->tc_verd = SET_TC_VERD(skb->tc_verd, verd);